INTERAPID 312 0,4 mm, 0,002 mm, Ø 30 mm

Measuring devices with particularly large measuring span - ideal for difference measurements, e.g. on the test plate - Measurements of form, position and positional deviations, in particular radial and axial run-out
Design: Lateral + perpendicular
- Measurement in 2 directions through automatic automatic changeover in the measuring unit
- Pointer always moves in the same direction
- Reliable reading due to additional pointer as rotation counter for the main hand
- Movement fitted with rubies
- Ball-bearing lever system with 210° swivelling range of the measuring insert
- Very low measuring force
- Particularly robust due to the all-metal design
- Swivelling clamping shaft Ø 4 mm
- Delivery: In case, measuring probe with ball Ø 2 mm, Clamping shaft Ø 8 mm, spanner disc

Measuring insert with 12° angle of attack
The INTERAPID 312 lever probe measuring devices are designed so that with an angle of incidence α of 12° of the measuring insert to the workpiece surface, the measuring value is correct without correction.
For any other angle of incidence, including the parallel position of the measuring insert to the workpiece surface, the measured values read must be corrected.

TECHNICAL DATA
Measuring range                       ± 0.4mm
Graduation value                      0.002 mm
Measuring surface                   carbide
Scale diameter                            30 mm
Type of dial face                         0–10–0
Dial color                                       White
Measuring force                        0.25 N
Range per rev.                             0.8 mm
Deviation range f_e                    4 µm
Total deviation range f_ges     6 µm
Hysteresis f_u                                2 µm
Partial measuring span f_t      2 µm
Repeatability f_w                         1 µm
Standard                                        EN ISO 9493

Measuring anvil length     15.2 mm